Exposure
ID
MATIS.2025-08-07T07:16:57.778_1
Header ID
MATIS.2025-08-07T07:16:57.778
Date updated
2025-08-07 07:25:43 UTC+0000
Release date
2026-08-07 07:25:43 UTC+0000
UTC Start
2025-08-07 07:16:57.778
UTC End
2025-08-07 07:17:59.788
MJD Start
60894.30344651
MJD End
60894.30416421833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.008821
Ambient temperature (°C)
13.31
Seeing (arcsec)
0.635
Observation
ID
69455
Category
science
Program ID
115.28GN.001
Program Title
MID-INFRARED STUDY OF THE PLANETARY ATMOSPHERES OF THE HR 8799 SYSTEM
Program Type
Normal
PI / COI
HOULLÉ / MILLOUR / SCIGLIUTO / LOPEZ
Target
ID
51600
Name
HD 218396
RA
346.871666
DEC
21.13408
Instrument
Interferometer
VLTI
Instrument
MATISSE
Instrument mode
HIGH_SENS_N_LOW
Instrument sub-mode
HYBRID
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 45.7840 45.8680 36.8000 36.9000
U1-U3 86.4450 86.6030 43.2000 43.2000
U1-U4 126.2740 126.3950 66.5000 66.4300
U2-U3 41.2610 41.3310 50.3000 50.3000
U2-U4 89.4170 89.4110 81.1880 81.0940
U3-U4 58.0110 57.9150 102.6010 102.5290
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28GN.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT
MJD-OBS 60894.30344651
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871666
DEC 21.13408
HIERARCH ESO DET NAME MATISSE-N
HIERARCH ESO INS DIN NAME LOW
HIERARCH ESO INS DIN ID LOW
HIERARCH ESO INS MODE HYBRID
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 0.0200088
HIERARCH ESO DET SEQ1 PERIOD 0.026
HIERARCH ESO DET NDIT 2385
HIERARCH ESO ISS PBL12 START 45.784
HIERARCH ESO ISS PBL12 END 45.868
HIERARCH ESO ISS PBLA12 START 36.8
HIERARCH ESO ISS PBLA12 END 36.9
HIERARCH ESO ISS PBL13 START 86.445
HIERARCH ESO ISS PBL13 END 86.603
HIERARCH ESO ISS PBLA13 START 43.2
HIERARCH ESO ISS PBLA13 END 43.2
HIERARCH ESO ISS PBL14 START 126.274
HIERARCH ESO ISS PBL14 END 126.395
HIERARCH ESO ISS PBLA14 START 66.5
HIERARCH ESO ISS PBLA14 END 66.43
HIERARCH ESO ISS PBL23 START 41.261
HIERARCH ESO ISS PBL23 END 41.331
HIERARCH ESO ISS PBLA23 START 50.3
HIERARCH ESO ISS PBLA23 END 50.3
HIERARCH ESO ISS PBL24 START 89.417
HIERARCH ESO ISS PBL24 END 89.411
HIERARCH ESO ISS PBLA24 START 81.188
HIERARCH ESO ISS PBLA24 END 81.094
HIERARCH ESO ISS PBL34 START 58.011
HIERARCH ESO ISS PBL34 END 57.915
HIERARCH ESO ISS PBLA34 START 102.601
HIERARCH ESO ISS PBLA34 END 102.529
HIERARCH ESO ISS AMBI TAU0 START 0.008821
HIERARCH ESO ISS AMBI TAU0 END 0.008821
HIERARCH ESO ISS AMBI TEMP 13.31
HIERARCH ESO ISS AMBI FWHM START 0.62
HIERARCH ESO ISS AMBI FWHM END 0.65